UPPERSTRUCTURE / Fan Motor 15. Install coupler holder (71) with bolt (72). : 11 mm 16. Install flange (73) with bolts (74) (4 used). Machine Front W1J1-02-13-004 : 19 mm : 90 N m (9.2 kgf m, 66 lbf ft) W1J1-02-13-018 73 74 W1J1-02-13-008 W2-13-17 71 72 Coupler M F achine ront